Dry farming irrigation farming and the cattle and sheep herding are the main activities of the great plains of the american west.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Dry farming ,irrigation farming,and the cattle and sheep herding are the main cativities of the Great Plains of the American West.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Dry farming, irrigation farming, and the cattle and sheep herding are the main activities of the Great Plains of the American West.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Technology means a lot of things: drip irrigation, no-till farming, more efficient ways to use fertilisers and kill pests.
科技意味着许多事情：滴灌、免耕耕种，化肥及农药的更有效使用。
The arable land not suitable for farming, irrigation, and drainage.
一耕地丘形不适于农事工作或不利于灌溉、排水者。
Third, circulating water is used for industrial purposes over and over in factories and treated sewage water is used for irrigation in farming land.
第三，循环水用于工业用途，在工厂和处理过的污水用于灌溉的农业土地。
Dry farming; dryland farming a system of producing crops in arid and semiarid regions without the use of irrigation. Frequently alternate years of fallow and cropping are practiced.
旱地耕作法指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。常常采用一年休耕、一年种植的方法。
Third, circulating water is used for industrial purposes over and over in factovies and treated sewage water is used for irrigation in farming land.
第三，循环水用于工业用途，遍地和处理的污水用于灌溉农业土地。
As aquifers are depleted and irrigation Wells go dry, farmers either revert to low-yield dryland farming or, in the more arid regions, abandon farming altogether.
随着蓄水层的枯竭和灌溉井的干涸，农民不得不改种低产的旱地作物，在更为干旱的地区，他们干脆放弃耕作。
Dry farming, irrigation farming, and the cattle and sheep herding are the main ativities of the Great Plains of the American West.
旱地农业，浇灌农业和畜牧业是美国西部大平原地域的首要勾当。
With the improvement of irrigation and farming technique, the unavailable evaporation and seepage are reduced and the effective crop transpiration is increased in irrigation areas.
灌区耗水结构随着灌溉和农业耕作技术的改进，无效的蒸发、渗漏减少，有效的作物蒸腾增加。
To solve the problems needed many measures including soil manage, fertilization, irrigation, farming policy etc.
解决这一问题需要从土壤管理、施肥、灌溉、耕作、政策等多方面采取措施。
The obstacles factors of soil were greater with longer greenhouse planting. Many ways were needed to solve the problems, including soil manage, fertilization, irrigation, farming policy, etc.
解决这一问题需要从土壤管理、施肥、灌溉、耕作、政策等多方面采取措施。
Northeast semi-arid region is one of the main parts of the north dry farming area, most of which no irrigation water resources.
东北半干旱区是我国北方旱农地区的重要组成部分，多数地区没有灌溉水源。
Northeast semi-arid region is one of the main parts of the north dry farming area, most of which have no irrigation water resources.
东北半干旱区是我国北方旱农地区的重要组成部分，多数地区没有灌溉水源。
Dry farming; dryland farming: a system of producing crops in arid and semiarid regions without the use of irrigation.
旱地耕作法：指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。
The test results show that this technology system that combines highly efficient use of rainfall and conservative farming technologies has greatly improved the yield and saved the irrigation water.
试验示范结果表明，实施此项自然降水高效利用与保护性耕作相结合的综合机械化技术，具有显著的增产、节水效果。
The plastic mulching irrigation is an important technique in dryland farming, which can increase temperature and conserve soil moisture.
地膜覆盖具有增温和保墒的作用，是旱作农业的一项重要技术。
Spraying irrigation wastes more water than flooding irrigation, revealing huge space for water saving measures in farming.
喷灌设施实际上比大水漫灌更容易挥发和浪费水资源，显示农业节水措施仍然有很大的空间。
People invented farming tools, designed elaborate irrigation networks, and built the first cities.
人们发明了农具，精心设计的灌溉网络，建成了第一个城市。
People invented farming tools, designed elaborate irrigation networks, and built the first cities.
人们发明了农具，精心设计的灌溉网络，建成了第一个城市。
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